ShellPkg: Eliminate loss of high bits in return value from exit command on 64 bit platform.

submitted-by: jcarsey
reviewed-by:  gookboy15a
reviewed-by:  niruiyu

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12356 6f19259b-4bc3-4df7-8a09-765794883524

ShellPkg/Library/UefiShellLevel3CommandsLib/Pause.c

@@ -84,7 +84,7 @@ ShellCommandRunPause (
       }
 
       if (EFI_ERROR(Status) || Resp == NULL || *Resp == ShellPromptResponseQuit) {
-        ShellCommandRegisterExit(TRUE);
+        ShellCommandRegisterExit(TRUE, 0);
         ShellStatus = SHELL_ABORTED;
       }